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Improvement of Student Achievement Through Problem Based Differentiated Learning Wahyu Ma’ruf Dharmaji; Rina Astuti*
JIPI (Jurnal IPA dan Pembelajaran IPA) Vol 7, No 3 (2023): SEPTEMBER 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v7i3.33145

Abstract

Learning needs to accommodate the diversity of students through innovative selection of strategies or learning models that are oriented towards an independent learning curriculum. The learning model that can be applied is through differentiated problem based learning (PBL) which can meet students' learning needs. This study aims to determine the increase in student learning outcomes using a differentiated PBL model. This research uses a type of qualitative research with a descriptive approach. Sampling was carried out using the purposive sampling technique, namely the technique of determining the sample with certain considerations. Data collection techniques using tests and observation sheets. Data analysis techniques used the normality test and paired sample t-test and used the formula on the observation sheet. The results showed that learning using the differentiation model with PBL increased significantly by 83.75 and the learning process took place effectively by 78
Potensi Eco Enzyme Untuk Meningkatkan Pertumbuhan Tanaman Kangkung (Ipomoea reptans Poir) Zulfa Iswari; Rina Astuti
Agroteknika Vol 7 No 3 (2024): September 2024
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v7i3.262

Abstract

Permintaan sayur-sayuran sangat tinggi karena pertumbuhan penduduk Indonesia yang relatif pesat dan meningkatnya pengetahuan masyarakat mengenai manfaat menerapkan kebiasaan makan yang baik untuk meningkatkan kandungan gizi makanan. Kangkung (Ipomoea reptans Poir.) merupakan salah satu jenis sayuran yang banyak diminati masyarakat Indonesia. Tumbuhan ini memerlukan makanan berupa air dan unsur hara untuk menunjang pertumbuhan dan produktivitasnya. Eco enzyme merupakan salah satu pupuk organik dengan kandungan nutrisi yang diperlukan oleh tanaman cukup banyak, sehingga dapat meningkatkan pertumbuhan tanaman. Eco enzyme merupakan hasil fermentasi sampah dapur organik dari kulit buah, sayuran, gula pasir (gula merah, gula coklat, atau gula tebu), dan air. Tujuan penelitian ini untuk mengetahui seberapa baik perkembangan tanaman kangkung dipengaruhi oleh pengolahan eco enzyme dari limbah rumah tangga. Rancangan acak lengkap (RAL) dengan satu faktor yaitu frekuensi pemberian eco enzyme pada benih tanaman kangkung menggunakan tiga ulangan pada masing-masing perlakuan digunakan untuk menyusun penelitian ini. Perlakuan yang digunakan berupa (E0): kontrol, (E1): aplikasi 1 minggu sekali dan (E2): aplikasi 2 minggu sekali. Untuk perlakuan (E0) tidak diberi eco enzyme namun disiram menggunakan air kran, sedangkan perlakuan (E1 dan E2) disiram menggunakan eco enzyme masing-masing sebanyak 50 mL/ pot. Hasil penelitian menunjukkan bahwa produksi eco enzyme dari limbah rumah tangga dapat diterapkan sebagai penunjang pertumbuhan dan produktivitas pada tanaman kangkung pengganti pupuk kandang. Dari pengaplikasian pada tanaman kangkung, setiap perlakuan tidak menunjukkan perbedaan hasil yang nyata.
Workshop on eco-enzyme production as the implementation of zero waste concept at SD Muhammadiyah PK Kottabarat Surakarta Lina Agustina; Rina Astuti; Aminah Asngad; Suparti Suparti; Erma Musbita Tyastuti; Siti Kartika Sari
Community Empowerment Vol 9 No 4 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.10421

Abstract

68% of household waste consists of organic waste, which significantly contributes to environmental pollution and can cause disruption if not managed properly. Unfortunately, proper management of organic waste is lacking, with a predominant method of disposal being dumping in empty land, waterways, or burning. However, organic waste holds potential for eco-friendly solutions such as eco enzymes. The objective of this community service initiative was to train individuals in producing eco enzymes from organic waste at SD Muhammadiyah PK Kottabarat Surakarta. The activities included educating the community about organic waste processing and conducting training sessions on eco enzyme production, including packaging and labeling. As a result of these efforts, teachers and students at SD Muhammadiyah Kottabarat gained the skills to utilize leftover fruit and vegetable waste, producing a total of 18 liters of eco enzymes. This included 2 jars of eco enzymes from vegetable waste and 4 jars from orange peels.
Evaluation of Higher-Order Thinking Skills of Middle School Students on Vibration and Wave Topic Using Rasch Measurement Annur Indra Kusumadani; Harry Afandy; Lina Agustina; Rina Astuti; Muhamad Waluyo
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.10900

Abstract

Higher-order thinking skills (HOTS) are crucial in science education, yet students often struggle to master them, particularly in complex topics such as vibrations and waves. This study aimed to evaluate the HOTS performance of 165 eighth-grade students from five schools in Purbolinggo Sub-district, East Lampung, using a two-tier multiple-choice test analyzed through the Rasch Measurement Model. The test consisted of 12 items, each with a content question and a reasoning tier, adapted from Treagust (1988) and validated through expert judgment. Rasch analysis indicated that most students demonstrated low HOTS ability, especially in the creating domain (C6), involving generating novel ideas or solutions. In contrast, analyzing (C4) and evaluating (C5) were relatively easier but still reflected limited mastery. The highest difficulty appeared in questions requiring divergent thinking and complex synthesis. Item fit statistics showed good instrument validity (person reliability = 0.93; item reliability = 0.83). These findings highlight the importance of implementing learning strategies that foster creativity and synthesis, such as problem-based learning or project-based approaches. The study was limited to one geographic area, which may restrict generalizability. Future research should explore broader contexts and incorporate qualitative data to deepen understanding of HOTS development in science.
Analysis of the Influence of Gamification Based Digital Learning Media on Students' Learning Interests Evolution Rina Astuti; Putri Agustina; Lina Agustina
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11114

Abstract

This study aims to analyze the effect of gamification based digital learning media on interest in learning evolution in increasing students' learning motivation. This study uses a quantitative quasi-experimental approach with a nonequivalent control group design. This study consists of three types of variables, gamification based digital learning media, interest in learning evolution, student characteristics. The study population and sample students in class XI IPA SMA Muhammadiyah 01  Surakarta. The results of the study showed a significant increase in learning interest in the experimental group compared to the control group. After being given certain treatments, the experimental group showed a much higher average posttest score, which was 85.13, while the control group only reached 71.45. This indicates that the treatment given to the experimental group succeeded in significantly increasing their learning interest. All indicators used to measure learning interest, such as attention, relevance, self-confidence, and satisfaction, also showed a higher increase in the experimental group. Research proves that digital technology and gamification mechanisms can effectively overcome learning challenges in abstract materials such as evolution. This makes a substantive contribution to building bridges between gamification theory, educational technology, and biology learning practices.